Determining the standard error of mean

Assignment Help Basic Statistics
Reference no: EM13102829

Define central limit theorem, standard error of the mean, standard error of the proportion. A population has a mean of 180 and a standard deviation of 24. A sample of 64 observations will be taken. The probability that the sample mean will be between 183 and 186 is? The number of random samples (without replacement) of size 4 which can be drawn from a population of 10 is? A simple random sample of 32 observations was taken from a large population. The sample mean and the standard deviation were determined to be 120 and 40 respectively. The standard error of the mean is?

Reference no: EM13102829

Questions Cloud

Normal distribution-final examination probability : The time needed to complete a final examination in a particular college course is normally distributed with a mean of 80 minutes and a standard deviation of 10 minutes.
Probability density function for uniform distribution : What is the probability density function for this uniform distribution?
Probability computation for binomial distribution : A Myrtle Beach resort hotel has 120 rooms. In the spring months, hotel room occupancy is approximately 75%. What is the probability that at least half of the rooms are occupied on a given day?
What displacement would have been needed to hole the ball : A golfer, putting on a green, requires three strokes to "hole the ball." During the first putt, the ball rolls 4.0 m due east. For the second putt, the ball travels 3.1 m at an angle 20° north of east. The third putt is 0.50 m due north. What disp..
Determining the standard error of mean : The sample mean and the standard deviation were determined to be 120 and 40 respectively. The standard error of the mean is?
What do the solutions manual abbreviations mean : What do the solutions manual abbreviations mean, 1P 1MCQ 1CQ? How can we locate the question the answers pertain to? There are no basic faqs on how to use the study guide anywhere. Please help, I have homework to do without searching a retarded si..
Dynamic tension-mutual influence between society- technology : Explain dynamic tension and mutual influence between society and technology, and influences of knowledge and power on humankind.
Name the subtype of equilibrium : Name the subtype of equilibrium (out of thermal, phase, mechanical and chemical equilibriums) that is at play in the following situations? A) Vapor floating over the surface of a lake on a cold winter morning. (4) B) Measuring the temperature of a..
Data regarding probability problems : A survey of undergraduate students in the School of Business at Northern University revealed the following regarding the gender and majors of the students:

Reviews

Write a Review

Basic Statistics Questions & Answers

  Values symmetrically distributed around the mean

Normal distribution of 5 pounds per square inch, standard deviation of 1.5 pounds per square inch, what proportion have less that 3.17 pounds per square inch, at least 3.6 pounds, are between 5 and 5.5 and 95% will be contained between what two va..

  Probability that both televisions work

Suppose you just received a shipment of eight televisions. Two of the televisions are defective. If two televisions are randomly selected, compute the probability that both televisions work. What is the probability at least one does not work?

  Basic concepts on probability

Suppose you have the experiment of flipping a coin three times.

  Hypothesis test to find difference between population means

Perform a hypothesis test by using.04 level of significance to find out if there is a difference between the population means.

  Least-squares line prediction for the cost of overrun

If an overrun contract was bid at 12 million dollars, what does the least-squares line predict for the cost of overrun (as a percent of bid price)?

  Probability of sample proportions

Roper ASW conducted a survey to learn about American adults' attitudes toward money and happiness. 56% of respondents said they balance their checkbook at least once a month.

  Frequency of committing error with different alpha level

In 1,000 samples, assuming that  H 0 is true, how many times would you expect to commit Type I error if:

  Determining days when percent confidence is given

How many days should be considered if a 95 percent confidence is used and the estimate is to be within one hundred dollars?

  Example on one-way anova

She is interested in testing the null hypothesis that the mean SAT score is the same for each type of schooling using the one-way ANOVA. Some summary statistics for the three groups are given below, followed by the one-way ANOVA table.

  Anova for grade of gasoline to use

Suppose that an automobile manufacturer designed a radically new lightweight engine and wants to recommend the grade of gasoline to use.

  Probelm related to making mortgage payments

A report on the U.S. economy indicates that 28% of Americans have experienced difficulty in making mortgage payments. A news organization randomly sampled 400 Americans from 10 cities named the "fastest dying cities in the U.S."

  Regression equation to the sample points

Identify this F ratio. What does the F ratio tell you about the fit of the regression equation to the sample points? What does it suggest?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd